BAD COURIER SERVICE

Im really upset my parcel was send from Pretoria to Johannesburg on Tuesday afternoon and I've been tracking my parcel since Thursday on Friday i call Waverly pertoria post net and they said no my parcel is for collection but Roan the worker of postnet he said I'll came back to you so I've call and call no one can give me any answers so then i call agian an finally a men pick up the phone and again i must explain my self and i say can you check on my parcel and can the courier service deliver today before 13:30 because the factory closed every Friday on 13:30 so he ask me for my tracing number i gave him my number and say no I'll contact the courier company I'll get back to you so I call them and ask did you hear anything of my parcel no im still waiting for them to come back to me. So at 12:00 o'clock I call and Roan picked up the phone and say your parcel is not for collection today it will be there on Monday. Now i whant to know why do they say 48 to 72 ours and yor stuff is delivered. And the bets of all is that he had the cheek to say (SORRY BUT IT'S NOT OUR FOLD THE FOLD IS THE COURIER SERVICE NOT POSTNET) AND LAST BUT NOT LEAST IS MY PARCEL WAS IN THE VAAL TRIANGLE AND IT WENT IN FRONT OF WHER ITS SE POST TO BE DELIVERED AN TAKE ITS BACK TO MIDRAND I REALLY DON'T RECOMMEND WAVERLEY POSTNET TO ANYONE........ REALLY BAD SERVICE